If the filler adds to the enjoyment of the film/series, sure. i.e. charming character moments, side trips to interesting locations, stunning visuals, exciting fight scenes, a beautiful song or dance number, a Halloween episode where everyone dresses up in wacky costumes for the sake of extra merchandising, etc.
But not just "oh, he dug in the sand for water" and then there was some bad CGI of leaping on a Harryhausen monster while another guy crawled around in a lizard suit. And a stunt double for Ming-Na jumped around some buildings. *When nothing actually happened storywise at all.*
I could watch Grogu sipping soup or trying to steal a spaceship lever for an hour and be entertained. 'Cause the kid is damn cute. Heck, I watched the hour-long loop clip of Zemo dancing from Falcon & Winter Soldier and I was freakin' mesmerized.
But I saw nothing in the 39 minutes of this first episode that was even filler-additive. I mean, did anyone not guess he somehow blew up the Sarlacc and got out and wound up making contact with someone to survive? Welp, that happened for 30 seconds here. Did anyone not guess that some people would pay tribute and some people would not? Welp, that happened for a minute or two here. I still have no idea what was accomplished with those 39 minutes however for advancing the story.